Older motherboard won't recognize 128 DIMM

[BoberFett]

I have a P2B that I flashed to the latest 1014 beta BIOS and it still won't recognize a brand new stick of PC133. It sees it as 64 MB instead of 128. Am I just SOL?

 

[minendo]

Is the rame double sided or single sided? In your case, I would guess that the 128 is double sided and your mobo can only read single sided hence the 128 reading as 64.

 

[BoberFett]

It's single sided. 128MB PNY PC133 with 4 Infineon chips.

I've got a mix of RAM in this box, there's a 64MB stick of generic PC100, and a 128 MB of PC100 Mushkin. The 128MB Mushkin is double sided and it recognizes that.

 

[microAmp]

Not sure if this helps any.
Aside from the link, have you tried it by itself to see what it comes up with? Trying it in the same slot the other double sided DIMM is in?

 

[BoberFett]

Doh, should have known to check the FAQs. This is using 256Mbit chips - 4x32MB = 128MB. Guess the BX just can't handle it. Thanks for the help guys.

 

[jobert]

I had the exact same problem.
It's not the total size of the dimm,
and its not double sided v. single sided.

Its the size of the individual ram chips
which make up the dimm.
The Asus P2B memory system can support
only up to 64Mbit chips.
Your dimm uses 256Mbit chips. (4 x 256).

It ain't gonna work.

 

[Peter]

Close ... Intel BX can support up to 128 MBit chip size - but only the 8-bit-wide flavor. 128 MBytes per (8-chip) DIMM side, 256 MBytes per (double sided) DIMM.

 

[RideFree]

Peter,
You're right. I ran into this last month on a repair on a Soyo BX for my insurance agent. Went to bump the ram to 256 and oops! Wrong flavor of chips! I think it wanted sour cream & onion, not garlic.😀😀😀

PS SOYO 6BA -IV = just about the greatest M/B in history (IMHO).😎